16138434233837 has 8 divisors (see below), whose sum is σ = 16469756734104. Its totient is φ = 15808105205568.

The previous prime is 16138434233813. The next prime is 16138434233861. The reversal of 16138434233837 is 73833243483161.

It is an interprime number because it is at equal distance from previous prime (16138434233813) and next prime (16138434233861).

It can be written as a sum of positive squares in 4 ways, for example, as 4104327535396 + 12034106698441 = 2025914^2 + 3469021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16138434233837 - 2⁶ = 16138434233773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16138434233897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248335178 + ... + 248400155.

It is an arithmetic number, because the mean of its divisors is an integer number (2058719591763).

Almost surely, 2^{16138434233837} is an apocalyptic number.

It is an amenable number.

16138434233837 is a deficient number, since it is larger than the sum of its proper divisors (331322500267).

16138434233837 is an equidigital number, since it uses as much as digits as its factorization.

16138434233837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496735999.

The product of its digits is 20901888, while the sum is 56.

The spelling of 16138434233837 in words is "sixteen trillion, one hundred thirty-eight billion, four hundred thirty-four million, two hundred thirty-three thousand, eight hundred thirty-seven".